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GU-33B
POWER TRANSMITTING TETRODE


The GU-33B is a glass-metal tetrode with air cooling having an output power of 130W at frequencies up to 500 MHz. The tube is designed for use in mobile and stationary radiotechnical equipments.
Analogue is RE0125XL Tesla ČSFR.

CHARACTERISTICS

Anode Dissipation ....................... 150  W
Screen Dissipation ...................... 10 W
Grid Dissipation .......................... 2 W
Frequency for Max. Ratings ........ 500 MHz
Cathode....................................... Oxide - coated
Heater Voltage ............................ 6.3 V
Heater current ............................. 5.2 A
Amplification Factor
at Ua = 400V; Ug2 = 250 and 300V; Ia = 375 mA................................

15
Transconductance at Ua = 400 V;
Ug2 = 300V; Ia = 375 mA..........
26 mA/V

Capacitance (Gnd.Cath.Connection)
     Input ......................................
     Output ...................................
     Feed-through .........................


49 pF
10 pF
<0.1 pF
Max. Seal and Envelope 
Temperature ...............................
150° C
Maximum Length ........................ 85 mm
Maximum Diameter .................... 50.6 mm
Weight (approximate) ................ 220 g
Operating Position ..................... Any
Blower ...................................... 40 m3/h

 

Class of
Operation 		Type of Service Max. Ratings Typical Operation
Anode
Voltage,
kV 		Anode
Current,
mA		 Anode
Voltage,
kV 		Screen
Voltage,
V 		Anode
Current,
mA 		Drive Pover
W		 Output
Power
W
C RF Amplifier 1.5 340 0.9 300 310 10 120


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